Comparing Common Octane Booster Chemicals: MMT, NMA, Ethanol, MTBE & Ferrocene Refineries and blenders use octane booster when fuel needs that extra knock resistance. But not all boosters are made equal. Some often clean combustion. Others bring deposit issues. Some are cost-effective. Others raise red flags with regulators. So – how do you decide? Let’s break down the most commonly used octane-boosting chemicals: MMT, NMA, Ethanol, MTBE, and Ferrocene. No hype. Just facts that matter to fuel manufacturers, refineries, and industrial buyers. Compare popular octane booster chemicals—MMT, NMA, Ethanol, MTBE, and Ferrocene. Learn their benefits, drawbacks, and impact on engine performance.